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Finding the Fourth Proportional to 268,889.89, 403,584.22 and 135,863.57

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Solution

The fourth proportional to 268,889.89, 403,584.22 and 135,863.57 is: 203,921.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,889.89 : 403,584.22 = 135,863.57 : x
  2. Step 2: Convert to fraction form
    268,889.89/403,584.22 = 135,863.57/x
  3. Step 3: Cross multiply
    268,889.89x = 403,584.22 × 135,863.57
  4. Step 4: Simplify right side
    268,889.89x = 54,832,392,924.87
  5. Step 5: Solve for x
    x = 54,832,392,924.87/268,889.89
  6. Step 6: Final answer
    x = 203,921.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.